/Engine/Source/Runtime/RHICore/Public/BoundShaderStateHistory.h
A list of the most recently used bound shader states. This is used to keep bound shader states that have been used recently from being freed, as they're likely to be used again soon.
template<uint32 Size, bool TThreadSafe> class TBoundShaderStateHistory : public [FRenderResource](API\Runtime\RenderCore\FRenderResource)